Home / 84,151.04-115,992.15-73,221.20

Finding the Fourth Proportional to 84,151.04, 115,992.15 and 73,221.20

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Solution

The fourth proportional to 84,151.04, 115,992.15 and 73,221.20 is: 100,926.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,151.04 : 115,992.15 = 73,221.20 : x
  2. Step 2: Convert to fraction form
    84,151.04/115,992.15 = 73,221.20/x
  3. Step 3: Cross multiply
    84,151.04x = 115,992.15 × 73,221.20
  4. Step 4: Simplify right side
    84,151.04x = 8,493,083,833.62
  5. Step 5: Solve for x
    x = 8,493,083,833.62/84,151.04
  6. Step 6: Final answer
    x = 100,926.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.